✨ Electricity Network Statistics
17 NOVEMBER 2006 NEW ZEALAND GAZETTE, No. 140
4063
Alpine Energy Limited Lines Business
Reliability and Performance Measures - Interruptions and Faults - 31 March 2006
| Interruptions | Class | 2008/11
(Target) | 2007
(Target) | 2006 | 2005 | 2004 | 2003 |
|--------------------------------------------|-------------|----------------|---------------|------|------|------|------|
| Number of Interruptions | | | | | | | |
| Planned Interruptions - Transpower | Class A | | | 1 | 1 | 0 | 2 |
| Planned Interruptions - Alpine | Class B | 40 | 40 | 22 | 43 | 42 | 46 |
| Unplanned Interruptions - Alpine | Class C | 50 | 80 | 83 | 81 | 90 | 65 |
| Unplanned Interruptions - Transpower | Class D | | | 2 | 1 | 0 | 0 |
| | Class E - i | | | 0 | 0 | 0 | 0 |
| Total | | | | 108 | 126 | 132 | 113 |
| Proportion of Total Class C Interruptions not restored: |
|---|
| Within 3 Hours |
| Within 24 Hours |
Faults
| Faults | Voltage | 2008/11
(Target) | 2007
(Target) | 2006 | 2005 | 2004 | 2003 |
|-----------------------------------------------------|----------|----------------|---------------|------|------|------|------|
| Overall System | | | | | | | |
| Faults per 100 circuit kilometres of prescribed voltage electric line | | 4.0 | 4.0 | 3.3 | 3.0 | 3.2 | 2.08 |
| | 33kV | 1.0 | 1.0 | 0.5 | 1.0 | 1.1 | 0.53 |
| Faults per 100 circuit kilometres | 22kV | 0.0 | 0.0 | 15.1 | 0.7 | 0.7 | 0.00 |
| | 11kV | 3.0 | 3.0 | 3.0 | 3.2 | 3.4 | 2.30 |
| | 6.6kV | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.00 |
| Overhead | | | | | | | |
| Faults per 100 circuit kilometres of prescribed voltage electric line | | 4.0 | 4.0 | 3.6 | 3.2 | 3.3 | 2.13 |
| | 33kV | 1.0 | 1.0 | 0.5 | 1.1 | 1.1 | 0.55 |
| Faults per 100 circuit kilometres | 22kV | 0.0 | 0.0 | 15.2 | 0.7 | 0.7 | 6.00 |
| | 11kV | 3.0 | 3.0 | 3.2 | 3.4 | 3.6 | 2.36 |
| | 6.6kV | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.00 |
| Underground | | | | | | | |
| Faults per 100 circuit kilometres of prescribed voltage electric line | | 1.0 | 1.0 | 0.8 | 0.8 | 1.3 | 1.38 |
| | 33kV | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.00 |
| Faults per 100 circuit kilometres | 22kV | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.00 |
| | 11kV | 1.0 | 1.0 | 0.9 | 0.9 | 1.4 | 1.48 |
| | 6.6kV | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.00 |
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Online Sources for this page:
VUW Te Waharoa —
NZ Gazette 2006, No 140
Gazette.govt.nz —
NZ Gazette 2006, No 140
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Alpine Energy Limited Network Statistics for 2006
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